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[FEAT MERGE] support auto dop

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This commit is contained in:
obdev
2023-04-28 15:11:52 +00:00
committed by ob-robot
parent 642f1c7d84
commit b41dc0ebdd
106 changed files with 3815 additions and 2844 deletions
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26
src/sql/resolver/dml/ob_hint.cpp
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@ -156,10 +156,20 @@ void ObGlobalHint::merge_max_concurrent_hint(int64_t max_concurrent)
}
}
/* global parallel hint priority:
1. with paralle degree: parallel(8)
2. enable auto dop: parallel(auto)
3. disable auto dop: parallel(manual)
*/
void ObGlobalHint::merge_parallel_hint(int64_t parallel)
{
if (parallel > 0) {
if (UNSET_PARALLEL == parallel_) {
if (SET_ENABLE_MANUAL_DOP == parallel) {
parallel_ = UNSET_PARALLEL == parallel_ ? SET_ENABLE_MANUAL_DOP : parallel_;
} else if (SET_ENABLE_AUTO_DOP == parallel) {
parallel_ = (UNSET_PARALLEL == parallel_ || SET_ENABLE_MANUAL_DOP == parallel_)
? SET_ENABLE_AUTO_DOP : parallel_;
} else if (UNSET_PARALLEL < parallel) {
if (UNSET_PARALLEL >= parallel_) {
parallel_ = parallel;
} else {
parallel_ = std::min(parallel, parallel_);
@ -277,7 +287,7 @@ bool ObGlobalHint::has_hint_exclude_concurrent() const
|| false != enable_lock_early_release_
|| false != force_refresh_lc_
|| !log_level_.empty()
|| UNSET_PARALLEL != parallel_
|| has_parallel_hint()
|| false != monitor_
|| ObPDMLOption::NOT_SPECIFIED != pdml_option_
|| ObParamOption::NOT_SPECIFIED != param_option_
@ -453,8 +463,14 @@ int ObGlobalHint::print_global_hint(PlanText &plan_text, const bool ignore_paral
LOG_WARN("failed to print log level hint", K(ret));
}
}
if (OB_SUCC(ret) && UNSET_PARALLEL != parallel_ && !ignore_parallel) { //PARALLEL
PRINT_GLOBAL_HINT_NUM("PARALLEL", parallel_);
if (OB_SUCC(ret) && has_parallel_hint() && !ignore_parallel) { //PARALLEL
if (has_parallel_degree()) {
PRINT_GLOBAL_HINT_NUM("PARALLEL", parallel_);
} else if (enable_auto_dop()) {
PRINT_GLOBAL_HINT_STR("PARALLEL( AUTO )");
} else if (enable_manual_dop()) {
PRINT_GLOBAL_HINT_STR("PARALLEL( MANUAL )");
}
}
if (OB_SUCC(ret) && monitor_) { //MONITOR
PRINT_GLOBAL_HINT_STR("MONITOR");